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Finding the Fourth Proportional to 505,915.20, 759,115.80 and 337,516.20

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Solution

The fourth proportional to 505,915.20, 759,115.80 and 337,516.20 is: 506,436.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,915.20 : 759,115.80 = 337,516.20 : x
  2. Step 2: Convert to fraction form
    505,915.20/759,115.80 = 337,516.20/x
  3. Step 3: Cross multiply
    505,915.20x = 759,115.80 × 337,516.20
  4. Step 4: Simplify right side
    505,915.20x = 256,213,880,175.96
  5. Step 5: Solve for x
    x = 256,213,880,175.96/505,915.20
  6. Step 6: Final answer
    x = 506,436.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.